Some Questions about the Appification of Buyout

Nobody at Random House told me that Buyout was going to be an app. I've never talked to anyone at ScrollMotion, who designed the app. There are many things I don't know. Why is Buyout twice as expensive, for example, as some of the other books on the list? (It's $16.99. Worth every penny, I might suggest, but still more than the actual print book.) How will I be paid for the apps that sell? Does it say in the contract that those app rights are even Random House's to sell? Some of this stuff I could look up, probably, if I went into five-year-old files and found the contracts. But those contracts are probably silent on the question of apps, since, well, apps didn't exist.

Also, how come I don't get a free one?